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reduce skipdet_e memory usage

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By using bitmaps, the memory requirement for
`q->skipdet_e->skip_eff_map` and `done_inf_map`, which previously scaled
with the corpus size, is reduced to one-eighth of its original size.
This commit is contained in:
Kuang-che Wu
2025-04-05 01:49:27 +00:00
parent 56b5983b61
commit ec07f531f8
4 changed files with 38 additions and 38 deletions
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12
src/afl-fuzz-bitmap.c
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@ -462,18 +462,6 @@ void write_crash_readme(afl_state_t *afl) {
}
static inline void bitmap_set(u8 *map, u32 index) {
map[index / 8] |= (1u << (index % 8));
}
static inline u8 bitmap_read(u8 *map, u32 index) {
return (map[index / 8] >> (index % 8)) & 1;
}
/* Check if the result of an execve() during routine fuzzing is interesting,
save or queue the input test case for further analysis if so. Returns 1 if
entry is saved, 0 otherwise. */